He became the first athlete since Carl Lewis in 1984 to win three sprint gold medals. He triumphed in the 100-meter and 200-meter races, and helped his Jamaican team capture the 4 x 100-meter relay.
Bolt became a star for his outsized personality as much as his outsized talent.
According to the National Post, some questions surround Bolt's preparation for these games, after he lost to countryman Yohan Blake in both the 100-meter and 200-meter races at the Jamaican Olympic track trials last month.
But Bolt says he knows how to be ready to bring his best when it counts, and that's the mark of a true superstar. On July 26, he told the BBC:
"This is the moment that is going to define my entire life. A lot of people say I am a legend, but this is going to define me as a legend. I think I am probably 95% fit but I am in great shape."
At age 25, Bolt should be at his sprinting prime, and we could see him shatter more records.
In addition to his triple-gold defense, he's hinting that he's willing to run for Jamaica in the 4 x 400-meter relay if they need him. "If I feel like I'm up to it after the 200m, then why not? For my country, I would do it, if it was necessary," he said.
The 4x400-meters will run its preliminary on August 9 and its final on August 10, the same days as two of his other events.
Here's a look at the schedule for the three events where Bolt will be defending his gold medals.